A microfluidics device for 3D switching of microparticles using dielectrophoresis

Waqas Waheed, Anas Alazzam, Eiyad Abu-Nada, Saud Khashan, Mohammad Abutayeh

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

Here we describe the design, modeling, fabrication, and successful utilization of a microfluidic switching device that employs dielectrophoresis to effectively manipulate micro-scale entities in a microchannel. Two sets of opposing interdigitated transducer electrodes are micropatterned at the bottom of the device. The electrodes enter slightly from each side-wall into the channel. Finite Element Analysis and experimental results demonstrate that this design enables 3D switching of micro-objects at any location in the microchannel. Living cells are switched to one of the three downstream branches by varying the actuation voltages on the electrodes.

Original languageBritish English
Pages (from-to)1-7
Number of pages7
JournalJournal of Electrostatics
Volume94
DOIs
StatePublished - Aug 2018

Keywords

  • Dielectrophoresis
  • Focusing
  • Microchannel
  • Microfluidics
  • Separation
  • Switching

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